<p><em>DADE CITY</em> - Three people have walked away with only minor injuries after their small plane landed upside down in a Tampa Bay-area cow pasture.</p><p>According to the Pasco County Sheriff's Office, the plane's pilot alerted Tampa International Airport officials that he was having engine trouble Saturday evening.</p><p>Another pilot later spotted the wreckage in Dade City. The sheriff's office says the plane had flipped upside down in a cow pasture.</p><p>The sheriff's office says three people on board the plane walked away with only minor injuries. The Federal Aviation Administration will be investigating.</p>